When we first started using TankTechsRx in RV holding tanks I was cleaning a plugged tank for a neighbor of Debbie. She was a full timer in Phoenix and I shared the TankTechsRx story with her. She agreed to try a bottle and try it. Several weeks later I was in the park cleaning another neighbors RV and Debbie called me over. She volunteered this account to me. I thought you would like to see it for yourself. I have done lots of them since then and the funny thing is, they all say the exact same thing, usually in the same order. The only thing I ever say is “just tell of your experience with TankTechsRx”.